Solar activity forecast for the period September 08 - September 09, 2026

Issued: 2026 September 07 17:00 UTC


Analysis from September 06/1700 UTC to September 07/1700 UTC:

Sunspot Regions on the Disk 07/1623 UTC (SDO Continuum): 8
The Largest Event: C2.2 from Region 4524 at 07/0901 UT
X-ray background flux (1.0-8.0 A) September 06: B4.5
Radio Flux 10.7 cm at 06/2300 UTC (Penticton): 110
Solar Wind Speed at 07/1650 UTC: 505.3 km/s, Density: 5.5 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 60, Class M: 15, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B4.0-B4.6
Radio Flux 10.7 cm: a fluctuation in the range 110-115

Martina Pavelkova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz